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777dan777 [17]
2 years ago
10

PLEASE HELP!! WORTH A TOTAL OF 100 POINTS!!

Physics
1 answer:
Serjik [45]2 years ago
4 0

The last equation gives you the tension in the string on the right:

T_2 = 2Mg - 2Ma = 2M (g-a) = \boxed{33.2 \, \mathrm N}

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Us your understanding of asexual reproduction to explain why is it important that organisms reproduce in a variety of ways.
valentina_108 [34]
The genetic material is identical in asexual reproduction- in order for organisms to be strong they need variety so if a disease comes, some of the species may be able to fight it off because of their varied genetics
5 0
3 years ago
1. What is the gravitational force of attraction between two 800 kg spherical objects that are 5 m apart? What would the gravita
Katyanochek1 [597]

Answer:

the force of gravity between them is quadrupled .

Explanation:

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces.

4 0
3 years ago
The label has been scratched off a tuning fork and you need to know its frequency. From its size, you suspect that it is somewhe
bonufazy [111]

Answer:

255 Hz

Explanation:

With 5 beats per second with the 250 Hz fork, we know the unknown fork is either 250 - 5 = 245Hz or 250 + 5 = 255 Hz

With 15 beats per second with the 270 Hz fork, we know the unknown fork is either 270 - 15 = 255Hz or 270 + 15 = 285 Hz (most people would have a hard time discerning 15 beats per second... 5 per second is hard enough)

As 255 is the common frequency, it is the one selected.

3 0
2 years ago
9. a. Determine the mass of a football which has a weight of 0.80 N on a planet where the gravitational field strength is 2 N/kg
krek1111 [17]

Answer:

m = 0.4 [kg]

Explanation:

Weight is considered as a force and this is equal to the product of mass by gravitational acceleration.

W=m*g\\

where:

W = weight = 0.8 [N]

m = mass [kg]

g = gravity acceleration 2[N/kg]

Therefore:

m=W/g\\m = .8/2\\m = 0.4 [kg]

5 0
2 years ago
Why is the law of buoyancy considered a law?
solong [7]

Answer:

Explanation:

because it is a function of physics that will always be true, hope this helps :)

4 0
2 years ago
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